wm8961 Wolfson Microelectronics plc, wm8961 Datasheet - Page 101

• Manufacturer Part Number: wm8961
• Description: Ultra-low Power Stereo Codec With 1w Stereo Class D Speaker Drivers And Ground Referenced Headphone Drivers
• Manufacturer: Wolfson Microelectronics plc

DIGITAL FILTER CHARACTERISTICS
ADC Filter
Passband
Passband Ripple
Stopband
Stopband Attenuation
DAC Normal Filter
Passband
Passband Ripple
Stopband
Stopband Attenuation
DAC Sloping Stopband Filter
Passband
Passband Ripple
Stopband 1
Stopband 1 Attenuation
Stopband 2
Stopband 2 Attenuation
Stopband 3
Stopband 3 Attenuation
w
WM8961
TERMINOLOGY
1.
2.
Mode
Normal
Sloping Stopband
Stop Band Attenuation (dB) – the degree to which the frequency spectrum is attenuated (outside audio band)
Pass-band Ripple – any variation of the frequency response in the pass-band region
PARAMETER
DAC FILTERS
Group Delay
16.5 / fs
18 / fs
TEST CONDITIONS
F > 0.546 fs
f > 0.546 fs
f > 0.546 fs
+/- 0.05dB
+/- 0.05dB
+/- 0.03dB
F > 1.4 fs
f > 0.7 fs
0.454 fs
+/- 1dB
0.25 fs
-6dB
-6dB
-6dB
Mode
Normal
0.546 fs
0.546 fs
0.546s
0.25 fs
0.7 fs
1.4 fs
MIN
-60
-50
-60
-85
-55
0
0
0
ADC FILTERS
0.5 fs
0.5 fs
0.5fs
TYP
Group Delay
16.5 / fs
0.454 fs
0.454 fs
0.454 fs
+/- 0.05
+/- 0.03
+/- 0.03
0.25 fs
0.7 fs
1.4 fs
MAX
PP, August 2009, Rev 3.1
UNIT
dB
dB
dB
dB
dB
dB
dB
dB
Pre-Production
101